This specification is built using Metanorma, which relies on a Ruby workflow (version 2.4+).
If you’re on macOS, just run the Metanorma install script:
bash <(curl -s https://raw.githubusercontent.com/riboseinc/metanorma-macos-setup/master/metanorma-setup)
On Ubuntu 18.04 the Ruby prerequisites can be installed with:
sudo apt install git make ruby-bundler ruby-dev libxml2-dev libxslt-dev default-jre
sudo gem install bundler
sudo gem install nokogiri -v '1.8.4'
The document can then be built with make clean all
.